WireWorld Platinum 6
WireWorld Platinum 7
Curious USB
Siltech Royal Signature USB
No contest for me....Siltech.
Mike, I know you are a Siltech fanboy, but ever tried the PAD 30th Anniversary USB? Heard it on Tuesday and it beats at least the Curious by quite a bit - especially low-end definition was better and overall balance was also very good. Detailed in the highs but not sharp.
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I don't think the stock Amanero USB board from Lampi is up to the level of other USB boards available (the F-1 is certainly better). Haven't heard the superclock, so maybe that would re-level the playing field, but I have yet to learn what exactly is entailed in the superclock option.
The new USB-board (with the superclocks) gives me a better result then I get with a PPA DDC (latest version) powered by a dedicated lpsu. Quite impressive to be honest.
Is the Siltech unpowered? if not, try the power cutter adapter with it. Its cheap at $20 or so. Maybe ifi iDefender does the same thing too.
https://www.sbooster.com/sbooster-tweaks/sbooster-vbus-isolator?language=en
and
http://ifi-audio.com/portfolio-view/accessory-idefender3-0/
Note that the Amanero does not need external power in the Lampi.
That's great feedback - thanks for sharing. I may have an opportunity to upgrade to superclocks in the coming months, so it sounds like that would be a good step to take. Actually, regarding the F-1, I have recently discovered some synergy issues with it. It is cleaner and clearer than the standard USB input. However, I just upgraded wall outlets to the Furutech NCF with wall plate and so forth. This yielded a surprising increase in overall system detail retrieval. After this upgrade, however, I felt the system became a bit too lean sounding for some reason. I was considering removing the wall plate because it mucked with the overall system synergy and tonal balance.
However, I decided to swap back to the USB input on the lampi - removing the F-1. Wow, now the USB has the right system synergy while the F-1 is a bit hard and lean sounding. Instruments are cleaner and more precisely delineated through F-1 still, but now sounding sterile. Very interesting. To this point, I had always found the F-1 to be an unequivocal improvement over the standard USB input. I'm still interested in the superclocks, though.
Just goes to show, system synergy can be everything.